Home / 172,663,820.80-258,995,731.20-45,013,004.80

Finding the Fourth Proportional to 172,663,820.80, 258,995,731.20 and 45,013,004.80

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Solution

The fourth proportional to 172,663,820.80, 258,995,731.20 and 45,013,004.80 is: 67,519,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,663,820.80 : 258,995,731.20 = 45,013,004.80 : x
  2. Step 2: Convert to fraction form
    172,663,820.80/258,995,731.20 = 45,013,004.80/x
  3. Step 3: Cross multiply
    172,663,820.80x = 258,995,731.20 × 45,013,004.80
  4. Step 4: Simplify right side
    172,663,820.80x = 11,658,176,091,685,108
  5. Step 5: Solve for x
    x = 11,658,176,091,685,108/172,663,820.80
  6. Step 6: Final answer
    x = 67,519,507.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.